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Polyurethane-rock wool insulating and fireproof material and preparation method thereof

A thermal insulation and fireproof material, polyurethane technology, applied in the field of thermal insulation, can solve the problems of weak material deformation ability, poor waterproof, difficult construction, etc., to achieve the effect of reducing production cost, increasing production speed and good working performance

Inactive Publication Date: 2015-06-03
查晓雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (1) The fire resistance of polyurethane materials is not good, and it is necessary to add flame retardants to improve its fire resistance, and the production cost is high
[0008] (2) The bulk density of rock wool material is too large, the water resistance is poor, the deformation ability of the material is weak, and the construction is difficult, so it is not suitable for modern rapid production technology

Method used

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  • Polyurethane-rock wool insulating and fireproof material and preparation method thereof
  • Polyurethane-rock wool insulating and fireproof material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1 The preparation method (production process) of polyurethane-rock wool thermal insulation and fireproof material of the present invention

[0044] include:

[0045] (1) First use a grinder to grind rock wool into powder, and the particle size of rock wool is less than 0.6mm;

[0046] (2) 100 parts by mass of polyether mixture and rock wool powder (20-30 parts by mass) of the aforementioned particle size were premixed at 0.40 MPa for more than 30 minutes under low pressure, and the materials were fully and uniformly mixed, and pressurized to 3.0 by a pressure pump ~4.0MPa high pressure state.

Embodiment 2

[0047] Embodiment 2 The preparation method (production process) of polyurethane-rock wool thermal insulation and fireproof material of the present invention

[0048] On the basis of embodiment 1, further include:

[0049](3) Pressurize 2 to 4 parts by mass of foaming agent to a high pressure of 3.0 to 4.0 MPa through a high pressure pump, and directly mix the mixture of foaming agent, polyether and rock wool under a high pressure of 3.0 to 4.0 MPa in a static state premixed in the tank and sent to the auxiliary sink stream.

Embodiment 3

[0050] Embodiment 3 The preparation method (production process) of polyurethane-rock wool thermal insulation and fireproof material of the present invention

[0051] On the basis of embodiment 1 and 2 further comprise:

[0052] (4), other components such as foam stabilizer (1.5-2.2 parts by mass), amine catalyst (0.55-0.58 parts by mass), color paste (0.2 parts by mass), tin catalyst (0.27-0.30 parts by mass), toluene Diisocyanate (48 parts by mass) and the like are also under a high pressure of 3.0-4.0 MPa, and the materials are sent to the auxiliary agent confluence flow through each high-pressure pump.

[0053] The components then enter the mixing head, where they are mechanically foamed. Or before the components enter the mixing head, the components are fully mixed and transported to the pouring device through the conduit. When reaching the pouring device, the pressure drops to 1.5-2.5MPa. The state flows evenly on the base film for foaming.

[0054] (5) The materials p...

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Abstract

The invention provides a preparation method (production process) of a polyurethane-rock wool insulating and fireproof material. The preparation method comprises the following steps: (1) firstly grinding rock wool by using a grinder to form powder, wherein the grain size of rock wool particles is less than 0.6mm; (2) carrying out low-pressure premixing on a polyether mixture and the rock wool in the grain size for over 30 minutes, uniformly and fully mixing the materials, and pressurizing to a high pressure state by a pressurizing pump to 3.0-4.0MPa; and further adding a foaming agent, a foam stabilizer and the like. The polyurethane-rock wool insulating and fireproof material prepared by the method provided by the invention satisfies the requirement A of combustion performance of building materials in GB8624-2006 of national standard Building Material and Product Combustion Performance Rating. The material is relatively good in insulating performance, and heat transfer satisfies the requirement of G / T23932-2009 of national standard Metal Surface Insulating Sandwich Board for Building, so that the fire resistance of a single polyurethane material is improved. The material can be widely applied to actual projects of industrial equipment, buildings and pipelines on a large scale.

Description

technical field [0001] The invention belongs to the thermal insulation field of industrial equipment, buildings, pipelines, etc., and specifically relates to a polyurethane-rock wool thermal insulation and fireproof material and a preparation method thereof. Background technique [0002] The prior art discloses polyurethane and rock wool insulation materials: [0003] 1. Polyurethane insulation material: Among the insulation materials currently used in practice, the thermal performance is the best, and the thermal conductivity is the lowest. The thermal conductivity is only 0.017-0.026W / (m·k). Its thermal insulation performance is very superior, and it is convenient for construction and production. Polyurethane insulation board has small bulk density, good water resistance, high compression, shear and tensile strength. However, the formula and ratio of insulation boards are messy and unstable, resulting in poor physical stability of the boards; polyurethane materials are fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08K7/10C08J9/08C08L75/08C08G101/00
CPCC08G18/48C08K7/10C08L75/08C08L2201/02C08G2110/0083
Inventor 查晓雄罗超宁
Owner 查晓雄
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